Inhibitory effects of polycyclic aromatic hydrocarbons (PAHs) on photosynthetic performance are not related to their aromaticity

Jajoo, Anjana; Mekala, Nageswara Rao; Tomar, Rupal Singh; Grieco, Michele; Tikkanen, Mikko; Aro, Eva‐Mari

doi:10.1016/j.jphotobiol.2014.03.011

Cited by 63 publications

(29 citation statements)

References 19 publications

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“…Plants have the ability to take up, translocate, transform and accumulate PAHs from the atmosphere (Wild and Jones, 1992;Wagrowski and Hites, 1997;Jajoo et al, 2014). Plant cannot avoid sunlight and hence they are at risk from light activated contamination and provide a relevant model system for study of photoinduced toxicity of PAHs.…”

Section: Introductionmentioning

confidence: 99%

Photomodified fluoranthene exerts more harmful effects as compared to intact fluoranthene by inhibiting growth and photosynthetic processes in wheat

Tomar

Jajoo

2015

Ecotoxicology and Environmental Safety

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Section: Introductionmentioning

confidence: 99%

Photomodified fluoranthene exerts more harmful effects as compared to intact fluoranthene by inhibiting growth and photosynthetic processes in wheat

Tomar

Jajoo

2015

Ecotoxicology and Environmental Safety

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“…Of the numerous environmental pollutants, PAHs are among the most toxic and highly persistent [8], due to their toxic, mutagenic, and carcinogenic properties [9][10][11], and the United States Environmental Protection Agency (US EPA 1993 [12]) has identified 16 [13][14][15]. The existence of these compounds in the environment can represent a serious risk due to their assimilation by living organisms.…”

Section: Introductionmentioning

confidence: 99%

Applications of inorganic–organic mesoporous materials constructed by self-assembly processes for removal of benzo[k]fluoranthene and benzo[b]fluoranthene

Costa

Garcia

Santos

et al. 2015

J Sol-Gel Sci Technol

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The mesoporous materials MCM-41 and the functionalized inorganic-organic material p-aminobenzoic acid-MCM-41 (PABA-MCM-41) were used as adsorbents to remove the PAHs benzo[k]fluoranthene and benzo[b]fluoranthene from aqueous media. Both MCM-41 and PABA-MCM-41 exhibited the hexagonal mesostructures typical of the M41S family, as confirmed by SAXS, with type IV isotherms and type H1 hysteresis. The materials showed uniform mesopore size distributions, high surface areas, and thermal stability. Adsorption tests showed that for both mesoporous materials, the quantity adsorbed (q e ) increased for higher initial PAH concentrations, and adsorption equilibrium was reached in around 90 min. The experimental kinetic data were fitted using the pseudosecond-order model, and the adsorption process could be described by the Langmuir isotherm. At higher temperatures, there were increases in the initial rates of adsorption and the kinetic constants for adsorption of the PAHs by PABA-MCM-41. The thermodynamic parameters indicated that the process was spontaneous, endothermic, and with a tendency toward disorder of the system at the adsorbent/adsorbate interface. The functionalization of MCM-41 increased the efficiency of adsorption of the PAHs by 44.5 and 32.0 % for benzo[k]fluoranthene and benzo[b]fluoranthene, respectively. Graphical Abstract Effect of contact time on adsorption of (a) B[k]F and (b) B[b]F by PABA-MCM-41. Conditions: 0.05 g of PABA-MCM-41, 5 mL of each PAH solution (concentration 200 lg L -1 ), temperature of 25°C, contact time of 300 min, and agitation at 150 rpm. 0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 22.2 22.3 22.4 22.5 26.5 PAH (a) Benzo[k]fluoranthene (b) Benzo[b]fluoranthene Time (min) q e (µg g -1 )

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“…Previous studies have demonstrated that PAHs toxicity can inhibit plant growth and development by influencing several biochemical and physiological processes, qualitatively as well as quantitatively (Jajoo et al, 2014;Li et al, 2008;Marwood et al, 2003). PAHs can enter the plant via stomata as well as via the root system and may inhibit plant growth (Kuhn et al, 2004;Ren et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Fluoranthene, a polycyclic aromatic hydrocarbon, inhibits light as well as dark reactions of photosynthesis in wheat (Triticum aestivum)

Tomar

Jajoo

2014

Ecotoxicology and Environmental Safety

Self Cite

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Inhibitory effects of polycyclic aromatic hydrocarbons (PAHs) on photosynthetic performance are not related to their aromaticity

Cited by 63 publications

References 19 publications

Photomodified fluoranthene exerts more harmful effects as compared to intact fluoranthene by inhibiting growth and photosynthetic processes in wheat

Photomodified fluoranthene exerts more harmful effects as compared to intact fluoranthene by inhibiting growth and photosynthetic processes in wheat

Applications of inorganic–organic mesoporous materials constructed by self-assembly processes for removal of benzo[k]fluoranthene and benzo[b]fluoranthene

Fluoranthene, a polycyclic aromatic hydrocarbon, inhibits light as well as dark reactions of photosynthesis in wheat (Triticum aestivum)

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